oSIST prEN 1761:2024

SLOVENSKI STANDARD
01-december-2024
Gumene cevi in cevni priključki za dostavo goriva s cisterno - Specifikacija
Rubber hoses and hose assemblies for fuel truck delivery - Specification
Gummischläuche und -schlauchleitungen für Tankwagen - Spezifikation
Tuyaux et flexibles en caoutchouc pour la livraison d'hydrocarbures liquides par
camions-citernes - Spécification
Ta slovenski standard je istoveten z: prEN 1761
ICS:
75.200 Oprema za skladiščenje Petroleum products and
nafte, naftnih proizvodov in natural gas handling
zemeljskega plina equipment
83.140.40 Gumene cevi Hoses
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2024
ICS 75.200 Will supersede EN 1761:1999
English Version
Rubber hoses and hose assemblies for fuel truck delivery -
Specification
Tuyaux et flexibles en caoutchouc pour la livraison Gummischläuche und -schlauchleitungen für
d'hydrocarbures liquides par camions-citernes - Tankwagen - Spezifikation
Spécification
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 218.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations
which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1761:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 5
4 Types . 5
5 Materials and construction . 5
6 Dimensions. 5
6.1 Nominal size, internal diameters, outside diameters, service reeling diameters,
minimum bend radius . 5
6.2 Concentricity . 6
6.3 Tolerances in length . 6
6.4 Minimum thickness of lining and cover . 6
7 Physical properties . 7
7.1 Rubber compounds . 7
7.2 Finished hose . 7
8 Test for security of coupling attachment . 9
9 Electrical resistance . 9
10 Frequency of testing . 9
10.1 Hoses . 9
10.2 Hose assemblies . 9
11 Marking . 10
11.1 Hoses . 10
11.2 Hose couplings . 10
Annex A (normative) Test frequency for type tests and routine tests . 11
Annex B (normative) Test method for adhesion between components . 13
Annex C (normative) Test method for flexibility at 20 °C. 14
Annex D (normative) Test method for flammability . 15
Annex E (normative) Test method for security of coupling attachment . 17

European foreword
This document (prEN 1761:2024) has been prepared by Technical Committee CEN/TC 218 “Rubber and
plastics hoses and hose assemblies”, the secretariat of which is held by BSI.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 1761:1999.
— Modification of the Scope by introducing a note regarding on how to proceed with other
temperatures and working pressures;
— In Table 1 adoption of the Dimensions Nb 80 and 125;
— In Table 3 modification of the entries for “Proof pressure min.” and “Burst pressure min.”;
— Introduction of a new Annex A for Test frequency for type tests and routine tests.
This document is based on ISO 2929, BS 3492 and the German military standard VG 95955.
1 Scope
This document specifies the requirements for two types of rubber hoses and rubber hose assemblies for
loading and discharge of liquid hydrocarbon fuels with a maximum working pressure of 10 bar
(1,0 MPa).
Both types of hose are designed for:
a) use with hydrocarbon fuels, having an aromatic hydrocarbon content not exceeding 50 % by
volume and containing oxygenated compounds up to 15 %;
b) operation within the temperature range of −30 °C to +70 °C, undamaged by climatic conditions of
−50 °C to 70 °C when stored in static conditions.
This document is not applicable to hoses and hose assemblies for LPG, aviation fuel systems, fuel station
systems and marine applications.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN ISO 1402, Rubber and plastics hoses and hose assemblies — Hydrostatic testing (ISO 1402)
EN ISO 4671, Rubber and plastics hoses and hose assemblies — Methods of measurement of the
dimensions of hoses and the lengths of hose assemblies (ISO 4671)
EN ISO 7233, Rubber and plastic hoses and hose assemblies — Determination of resistance to vacuum
(ISO 7233)
EN ISO 7326, Rubber and plastics hoses — Assessment of ozone resistance under static conditions
(ISO 7326)
EN ISO 8031, Rubber and plastics hoses and hose assemblies — Determination of electrical resistance and
conductivity (ISO 8031)
EN ISO 8033:2017, Rubber and plastics hose — Determination of adhesion between components
(ISO 8033:2016)
EN ISO 10619-1, Rubber and plastics hoses and tubing — Measurement of flexibility and stiffness — Part
1: Bending tests at ambient temperature (ISO 10619-1)
EN ISO 10619-2:2021, Rubber and plastics hoses and tubing — Measurement of flexibility and stiffness —
Part 2: Bending tests at sub-ambient temperatures (ISO 10619-2:2021)
ISO 37, Rubber, vulcanized or thermoplastic — Determination of tensile stress-strain properties
ISO 188, Rubber, vulcanized or thermoplastic — Accelerated ageing or heat-resistance tests
ISO 1817:2024, Rubber, vulcanized or thermoplastic — Determination of the effect of liquids
ISO 4649:2024, Rubber, vulcanized or thermoplastic — Determination of abrasion resistance using a
rotating cylindrical drum device
ISO 8330, Rubber and plastics hoses and hose assemblies — Vocabulary
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 8330 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at https://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
4 Types
Hoses shall be one of the following types:
a) type D: delivery hose;
b) type SD: suction and delivery hose, helix reinforced.
Both these types can be either:
1) electrically bonded, designated and marked “M” type; or
2) electrically conductive, using a conductive rubber layer, designated and marked “Ω” type.
5 Materials and construction
If mandrel built, particulate type, release agents shall not be used.
The hose shall be uniform in quality and free from porosity, airholes, foreign inclusions and other
defects.
The hose shall consist of the following:
a) a lining of synthetic rubber resistant to hydrocarbon fuels;
b) a reinforcement of layers of woven, braided or spirally wound textile material;
c) an embedded helix reinforcement (type SD only);
d) two or more low resistance electrical bonding wires (type “M” only);
e) an outer cover of synthetic rubber, resistant to abrasion, outdoor exposure and hydrocarbon fuels.
6 Dimensions
6.1 Nominal size, internal diameters, outside diameters, service reeling diameters,
minimum bend radius
When measured in accordance with EN ISO 4671 the internal diameter and outside diameter and their
tolerances shall comply with the values given in Table 1.
When tested by the method described in EN ISO 10619-1, the value of the minimum bend radius shall
be as given in Table 1.
Other diameters than listed in the table can be agreed with the manufacturer.
Table 1 — Dimensions
Minimum external
Internal Outside
Tolerance Tolerance diameter of reeling
Nominal
diameter diameter
drum used in service
size
mm mm mm mm mm mm
19 19,0 31,0 225 125
25 25,0 37,0 300 150
±0,5 ±1,0
32 32,0 44,0 375 175
38 38,0 51,0 450 225
50 50,0 66,0 550 275
±0,7
51 51,0 67,0 550 275
63 63,0 79,0 600 300
±1,2
75 75,0 91,0 600 350
76 76,0 92,0 600 350
80 80,0 ±0,8 96,0 800 380
100 100,0 116,0 450
- 1,6
101 101,5 118,0 + 2,0 900 450
125 125,0 145,0 725
−2,0
150 150,0 ±1,6 170,0 +2,2 N.A 750

N.A = not applicable
6.2 Concentricity
When determined in accordance with EN ISO 4671, the concentricity, based on a total indicator reading
between the internal diameter and the outside surface of the cover, shall be less than or equal to 1,0 mm
for hoses of nominal size up to and including 76, and 1,5 mm for hoses of nominal size greater than 76.
6.3 Tolerances in length
The tolerance on the measured length of hose or hose assembly shall be ± 1 %.
6.4 Minimum thickness of lining and cover
The minimum thickness of the lining of all hoses shall be 1,6 mm.
For hoses of nominal size up to and including 50 the minimum thickness of the cover shall be 1,6 mm.
For hoses of nominal size greater than 50 the minimum thickness of the cover shall be 2,0 mm.
7 Physical properties
7.1 Rubber compounds
The physical properties of the compounds used for the lining and cover shall comply with the values
given in Table 2, when tested by the methods listed in Table 2.
Tests shall be carried out either on samples taken from the hose or from separately vulcanized sheets.
Table 2 — Physical properties of rubber compound
Requirements
Property Unit Test methods
Li
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